Hi. I have one problem. I need to read data from one LCD keypad but the problem is that i can not put camera in front of lcd keypad because end user will not see what is done...
Is there any way to put somekind of transparent "part" to LCD , so i can pickup data and pass it to camera or serial port ?
GM
On Mon, 2 Nov 2015 10:51:38 +0100, gm Gave us:
Make the camera a 'flip-up' attachment like sunglasses which get attached to prescription glasses do.
I dont know if i can do that because the camera that am planning to use is standard USB mini camera. Do you have some link where i can find such "accessories" :-).
GM
On Mon, 2 Nov 2015 12:01:59 +0100, gm Gave us:
Maybe you can find a way to read the data that updates the screen electrically, then decode it into standard text output.
Semi-silvered mirror?
Sylvia.
If the controller for the LCD is a standard HD44780 or compatible it should not be too difficult to decode the data, esp. if there are only writes to the display. In this case you could connect a second display of the same type in parallel (via buffer if necessary) that you can aim your camera onto.
Something tells me the LCD electronics is not available to him and a attempt is being made to monitor the LCD contents covertly.
Yes, I do pick up on things.
Jamie
On Mon, 2 Nov 2015 19:16:27 -0500, M Philbrook Gave us:
Not covertly, idiot. Additionally.
Goverment love people like you, so naive.
Jamie
I thought exactly the same. It's a sketchy question.
He could also be working for an employer who either wants a backup of whatever work is performed, or possibly to detect sabotage.
But in the US, always think the worst, it is usually the case.
On Mon, 2 Nov 2015 20:00:48 -0500, M Philbrook Gave us:
You're a goddamned retard.
On Tue, 3 Nov 2015 10:01:39 +0800, DAB Gave us: snipped jamieTard's stupidity.
You are both paranoid. If it was some sensitive display, it would not be in an open, accessible area, and cameras wouldn't be in an area where something sensitive was.
Send he signals going to the lcd to a second LCD, point the camera at that.
On a sunny day (Mon, 2 Nov 2015 19:16:27 -0500) it happened M Philbrook wrote in :
Yea, PIN enter snooping.:-)
Since everything is hacked these day the PINs are likely just online. Found the telnet password for my DVR box online with google...
PS you can even find Pi with google
Thats one thing that DOESN'T show up on the display, if the SW running it is any kind of standard.
RL
On a sunny day (Tue, 03 Nov 2015 09:12:20 -0500) it happened legg wrote in :
Sorry, was under the imperssion it was some touch display keyboard.
If you can make connections to the LCD, the XY (serial) scan pattern can be decoded.
Actually, one can use a standard 50% reflective coated mirror at 45 degrees; straight thru view for user,90 degree for camera. Angles can be less and reflectivity could be as small as zero.
I learn from the best, you.
Jamie
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